I have owned this jacket since it was on sale in the summer here at backcountry. I didn't have much opportunity to wear it back then because it is holds body heat VERY well. Have worn it daily since the temps have fallen and am amazed at how it sheds rain. Was caught in a torrential downpour for 15 minutes and stayed dry! (My head was soaked, only had a baseball cap on) Pit zips work great for ventilation. Only downside for me is the fit. Definitely slim fit and only a problem if you have a big chest to waist ratio. The arm cut allow totally free movement but it is a little snug across the chest. Love the jacket though and will not be returning it.